Product Details

ASTM 631/JIS SUS631

The 631 China 0Cr17Ni7Al, 631 for semi austenitic precipitation hardening stainless steel, is a kind of austenitic stainless steel is not stable, solid at room temperature, austenite, after cold working, cooling or heating to 750 degrees to adjust treatment, martensite austenite can be changed, and then aging treatment, but the precipitation of second phase in the martensite matrix and the steel reinforcement. The role of Al is to form and other elements such as Shen play hardening phase (Ni3Al).

Product Basic Information:

Material		ASTM 631
Chemical Composition		Mechanical Properties(In Quenched & Tempered State)
C	≤0.09	Tensile strength(MPA)	≤1030
Si	≤1.00	Yield strength (MPA)	≤380
Mn	≤1.00	Elongation(δ5/%)	≥20
Cr	16.00-18.00	Reduction in Area (ψ/%)	-
Cu	≤0.05	Impact (J)	-
P	≤ 0.035	Hardness	≤229HBS
S	≤ 0.030
Nb	0.15-0.45
Ni	6.50-7.75

2.Product Application Areas:

Our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical industry,

electronic information,achine manufacture, petrochemical, automotive,instrument and meter, Communication ,transportation, and medical instruments, etc.

3.Similar steel grade & equivalent steel materials:

USA	Japanese	Gemany	British	France	International	Chinese
ASTM&AISI&SAE	JIS	EN DIN	EN BS	EN NF	ISO	GB
631	SUS 631	X7CrNiAl177(1.4568)			------	0Cr17Ni7Al

High strength and resistance to intergranular corrosion and chloride stress corrosion is improved obviously. Stainless steel has great corrosion performance.

Product Sales Information:

Material	631 stainless steel
Size	Diameter:20mm-1000mm Length:500mm-6000mm
Origin place	Made In China
Delivery Condition	Hot rolled,cold drawn,forged
Surface require	Black,grinding,bright,polish
Heat treatment	Quenched,Tempered,annealed
Packing	seaworthy packing ,wooden case ,carton,woven bag or at client's requires
Delivery time	In 10-50 days
Trade Term	EXW,FOB,CIF
Payments	T/T or L/C at sight
Port	China main Port,such as shanghai,Dalian,Shenzhen port.
MOQ	1 Ton

Company Main Products:

Alloy Steel	5140,5115,5120,5130,5145,4118,4130,4135,6150,5115,4142,4130,4118,6150,4140,4720,4320 ,E9310,8620,4340
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057,201,202,301